Factory Tours are temporarily closed. The H-D Museum in Milwaukee is open!
VETERANS PARK TICKETS ON SALE NOW. BUY TICKETS 
Model Year-End Event. Learn more
Ready to Ride? Let us sweeten the deal. See Available Offers.
Ready to Ride? Let us sweeten the deal. See Available Offers.
Make sure this part fits
This part fits your .
This part does not fit your .
This part does not fit your .
This part fits your .
You are purchasing for this VIN: .
VIN required for purchase

Screamin' Eagle Milwaukee-Eight Extreme CNC Ported Cylinder Heads

Part Number: 16500747
Color: Black Granite
Qty
Only in stock
Only in stock for pickup

View Similar Items

Item is sold out but can be back ordered:

Learn More

Or be notified when back in stock.

Notify me when this item is available.
Item will be sold in-store only.
Add to Cart

Item Limit Error

Designed as part of the 128CI and 131CI Screamin’ Eagle Milwaukee-Eight Stage IV Performance Kit, this Second Generation of Extreme Ported Cylinder Heads has been meticulously designed to optimize air/fuel flow and velocity. Improving on the First Generation of CNC-Ported Milwaukee-Eight Cylinder Heads, the Screamin' Eagle team refined the intake and exhaust ports to maximize the flow of high-velocity air through the 1mm larger valves of 128CI and 131CI engines and fully machined the combustion chamber to optimize combustion efficiency.

...Read More
Screamin' Eagle Milwaukee-Eight Extreme CNC Ported Cylinder Heads
Designed as part of the 128CI and 131CI Screamin’ Eagle Milwaukee-Eight Stage IV Performance Kit, this Second Generation of Extreme Ported Cylinder Heads has been meticulously designed to optimize air/fuel flow and velocity. Improving on the First Generation of CNC-Ported Milwaukee-Eight Cylinder Heads, the Screamin' Eagle team refined the intake and exhaust ports to maximize the flow of high-velocity air through the 1mm larger valves of 128CI and 131CI engines and fully machined the combustion chamber to optimize combustion efficiency.
Replacement cylinder heads for Twin-Cooled '17-later Milwaukee-Eight models equipped with 128 or 131CI Stage IV kits
When combined with a larger bore throttle body, these CNC Cylinder Heads provide significantly improved efficiency of cylinder filling, leading to more explosive power and increased rear-wheel torque when compared to stock
Factory equipped with high-performance valve springs that remain stable with high-lift cams and in high-RPM operation
Intake valves 41mm and exhaust valves 33mm

Replacement cylinder heads for Twin-Cooled '17-later Milwaukee-Eight models equipped with 128 or 131CI Stage IV kits. All models require ECM calibration with Screamin’ Eagle Pro Street Tuner or dealership installed Screamin’ Eagle calibration for proper installation. See Dealer for details.

Dealer Install Recommended: Yes
ECM Calibration Required: Yes
Sold Separately: Screamin’ Eagle Pro Street Tuner
Sold In Units: Pair
In the Box: Front and Rear CNC Ported Heads
WARRANTY: 1 year limited warranty – Go to www.h-d.com/warranty for full details
These Screamin’ Eagle® products are 50-State U.S. EPA compliant for sale and use on all applicable vehicles, including those that are pollution controlled. See Genuine Motor Parts and Accessories or Screamin’ Eagle Accessories catalog for fitment information. Screamin’ Eagle Performance products are intended for the experienced rider only.
Rating Snapshot
5
0
4
0
3
0
2
0
1
0
Showing - of
Reviews
Let us know what you think. Write a review
    Showing - of
    Q&A
    Be the first to ask a question. Ask a question

      H-D™ Visa® Card

      If instantly approved, use your virtual card today to get a Low Introductory APR and the opportunity to earn $100 in H-D Gift Cards.18

      Related Products